package com.silp.baitap1;

public class hinhchunhat {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		
		int cao=6;
		int rong =20;
		for (int i = 0; i < cao; i++) {
			for (int j = 0; j < rong; j++) {
				
				if ((i==0)||(j==0)||(j==rong-1)||(i==cao-1)){
					System.out.print("*");
				}
				else
					System.out.print(" ");
			}
		System.out.println();	
		}
		

	}

}
